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The original was posted on /r/homeassistant by /u/Ramshield on 2025-02-04 08:19:00+00:00.

Hi,

I have the ventilation in our house automated, I can remotely turn it on.

Now I want to do it when someone is in the shower, as my wife forgets to do this.

I currently have a button you have to press, but she doesn’t, so I gave that up…

What is the best way to detect if someone is in the shower?

I use DSMR to see if gas is used for the CV, and a water sensor with which I can measure the total consumption of waterusage in the whole house.

I can’t do it based on water consumption, because when the toilet is flushed it’d also turn on the ventilation…

Does anyone have a good suggestion? Thank you!